splitgill mushroom schizophyllum commune, saprotrophic fungus growing on the stump of a cut deciduous tree

schizophyllum commune splitgill mushroom fungus saprotrophic basidiomycete basidiomycota agaricomycetes agaricales schizophyllaceae gills fanshaped white gray hairy wood decay decomposer stump deciduous tree forest nature wild edible medicinal spores mycelium shelf polypore texture organic natural environment biodiversity ecology biology mycology taxonomy species identification